US20090231080A1 - Coil body for an electric oil and method for producing an electronic element provided with said coil body - Google Patents

Coil body for an electric oil and method for producing an electronic element provided with said coil body Download PDF

Info

Publication number
US20090231080A1
US20090231080A1 US11/989,294 US98929406A US2009231080A1 US 20090231080 A1 US20090231080 A1 US 20090231080A1 US 98929406 A US98929406 A US 98929406A US 2009231080 A1 US2009231080 A1 US 2009231080A1
Authority
US
United States
Prior art keywords
coil
coil former
movable flaps
winding
former
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/989,294
Other languages
English (en)
Inventor
Wolfgang Ebert
Jürgen Klier
Bernhard Orben
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PATENT-TREUHANF-GESELLSCHAFT fur ELEKTRISCH GLUHLAMPEN MBH
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Assigned to PATENT-TREUHANF-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH reassignment PATENT-TREUHANF-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ORBEN, BERNHARD, EBERT, WOFGANG, KLIER,JURGEN
Assigned to OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG reassignment OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG MERGER (SEE DOCUMENT FOR DETAILS). Assignors: PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN MBH
Publication of US20090231080A1 publication Critical patent/US20090231080A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H01F2005/043—Arrangements of electric connections to coils, e.g. leads having multiple pin terminals, e.g. arranged in two parallel lines at both sides of the coil
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core

Definitions

  • the present invention relates to a coil former for an electrical coil, the coil former having a hollow central region for accommodating a subregion of a coil core, and it being possible for a winding to be applied to an outer side of the central region. Furthermore, the invention relates to an electronic component which comprises such a coil former. In addition, the invention also relates to a method for producing an electronic component having such a coil former.
  • FIG. 1 A magnetic component known from the prior art is illustrated schematically in FIG. 1 .
  • This component has a coil former 1 , which is at least partially surrounded by a coil core 2 .
  • the coil former 1 in this case also comprises a central region, which cannot be seen in the illustration in FIG. 1 , and which has a hollow design and is arranged for accommodating a subregion of the coil core 2 .
  • the coil core 2 generally consists of ferrite.
  • a winding 3 which can be wound, for example, from copper wire, is wound on on the outer side of the central region of the coil former 1 .
  • the winding 3 is in this case insulated from that subregion of the coil core 2 , which is arranged in the interior of the central region, by the central region of the coil former 1 .
  • the coil core 2 has outer limbs 21 which are arranged adjacent to the winding 3 .
  • the winding 3 is separated from these outer limbs 21 merely by an air gap.
  • sufficient insulation of the winding 3 with respect to the coil core 2 in particular towards the outer limbs 21 of the coil core 2 , needs to be provided.
  • the value is established by the voltage load of the respective application (for example 2000 Vrms).
  • the insulation from that subregion of the coil core 2 which is arranged in the interior of the central region of the coil former 1 is ensured by the enveloping coil former material.
  • the air gap to be maintained is dependent on the respective voltage load and the manufacturing requirements. This means that the area in which the winding 3 is arranged can only be used to a limited extent. If, owing to a design which is optimized in terms of losses, the required distance between the winding 3 and the outer limbs 21 cannot be maintained, additional insulation in the form of a so-called horseshoe tape needs to be introduced, as is shown in FIG. 2 . However, this results in considerable additional costs and in a considerably more complex design. Such an arrangement of a horseshoe tape is also required in the case of relatively high dielectric strengths, in the case of which the required air gap cannot be realized.
  • the present invention is therefore based on the object of providing a coil former for an electrical coil, with which coil former it is possible to achieve improved insulation of the winding of the electrical coil. Furthermore, it is one object of the invention to provide an electronic component having such a coil former, in the case of which it is likewise possible to achieve improved insulation between a winding of the electrical coil and a coil core. In addition, it is one object of the present invention to provide a method for producing such an electronic component having a coil former according to the invention.
  • a coil former according to the invention for an electrical coil comprises a central region, which has a hollow inner structure for accommodating a subregion of a coil core.
  • the central region of the coil former is designed such that it is possible to apply a winding of the electrical coil to its outer side.
  • One important concept of the invention consists in the fact that movable flaps are arranged at side regions of the coil former and are designed such that, in the closed state, the movable flaps are arranged as electrical insulation between the winding and adjacently arranged outer limbs of the coil core.
  • the movable flaps are arranged at opposite side regions. This makes it possible to achieve a situation in which, in particular in the critical regions in which the winding is arranged adjacent to the outer limbs of the coil core, reliable and safe insulation can be ensured.
  • the movable flaps are preferably in the form of plates. This allows for sufficient insulation essentially over the entire length of a side region of the coil former. Furthermore, it is also possible as a result for relatively space-saving insulation to be formed.
  • the movable flaps are integrated in the coil former.
  • An integral production of the movable flaps with the remaining part of the coil former ensures a relatively simple and low-complexity production process. Furthermore, no further manufacturing and assembly steps are required in order to fix the movable flaps to the coil former.
  • the movable flaps are advantageously each connected to the side regions of the coil former via a hinge apparatus.
  • the hinge apparatuses are preferably in the form of film hinges.
  • Each of the hinge apparatuses is advantageously curved, in particular arcuate. The curvature in this case may be both concave and convex in a plan view of the coil former.
  • a movement mechanism for opening and closing the movable flaps can be provided, in the case of which the open or the closed end position of the movable flaps can be retained independently in a stable manner.
  • the open state of the movable flaps can therefore be held securely when the winding is applied. This makes it possible to prevent the operation involving the application of the winding to the coil former from being impaired by an unintentional movement of the flaps when the coil former is rotated. Furthermore, it is possible to achieve a situation in which the flaps retain the closed state independently if the flaps are closed.
  • the curved formation of a hinge apparatus is preferably designed such that, starting from an open state of the flaps, said flaps are closed by such a force effect on the flaps, which force effect increases, as the closure operation progresses, up to a certain point (rising force curve) and, once this point has been exceeded, preferably decreases again for further closing of the flaps up to the end state (falling force curve).
  • the force curve can be adjusted by the curvature of the hinge apparatuses.
  • the position of the point during an opening or closing operation of the flaps at which the maximum force effect is required for further moving the flaps can also be influenced by the curvature.
  • the movable flaps are arranged on the coil former such that they are provided virtually in the open state. This makes it possible for the winding to be attached without the movable flaps first needing to be swung open or actuated.
  • the regions on the outer side of the central region of the coil former are freely accessible in the initial state.
  • One further aspect of the invention relates to an electronic component which has a coil former according to the invention or an advantageous refinement thereof.
  • the coil former furthermore comprises a winding arranged around the coil former and a coil core, the coil core comprising two outer limbs which at least partially engage around the coil former.
  • said electronic component may also have further elements and further refinements.
  • the movable flaps are preferably closed once the winding has been attached to the coil former and before the coil core is attached. This makes it possible to position the various elements of the electronic component in a relatively simple manner.
  • the coil core of the electronic component in the assembled state of this electronic component, is arranged such that the closed state of the movable flaps can be effected by the coil core, in particular the outer limbs of the coil core.
  • the arrangement of the coil core and the coil former is such that the outer limbs engage around the side region of the coil former such that the movable flaps can be held in the closed state. Provision may also be made for it to be possible for the closed state of the flaps to be held, as an alternative or in addition, by a latching device.
  • a coil former according to the invention or an advantageous refinement thereof is arranged and installed in the electronic component.
  • a coil core of the electronic component comprises at least two outer limbs, which are spaced apart from a winding which is arranged at a central region of the coil former.
  • the outer limbs are positioned such that they at least partially engage around the coil former.
  • One important concept of the method according to the invention consists in the fact that movable flaps are attached to the coil former, are closed once the winding has been applied to the coil former and, in the closed state, are positioned between the winding and the outer limbs of the coil core, as a result of which insulation is produced between the winding and the outer limbs of the coil core.
  • the movable flaps are integrally extruded at opposite sides of the coil former. Provision may be made for the entire coil former to be produced integrally by means of an injection molding process.
  • the coil former is preferably fitted once the movable flaps have been closed, in particular such that the closed state is held by the outer limbs of the coil core. This makes it possible to achieve a situation in which the positions of the elements in relation to one another are securely retained and the closed state of the movable flaps is maintained in a reliable manner. This also makes it possible to achieve continuously reliable insulation between the winding and the coil core, in particular the outer limbs of the coil core.
  • FIG. 1 shows a front view of an electronic component known from the prior art
  • FIG. 2 shows a perspective illustration of a further electronic component known from the prior art
  • FIG. 3 shows a perspective illustration of a coil former according to the invention
  • FIG. 4 shows a further perspective illustration of a coil former according to the invention.
  • FIG. 5 shows a detail drawing of a preferred embodiment.
  • a coil former 1 according to the invention is shown in a schematic illustration in FIG. 3 .
  • the coil former 1 comprises a central region which has a hollow interior 11 a .
  • a subregion of a coil core 2 (not illustrated) may be positioned in this hollow interior 11 a .
  • the central region has an outer side 11 b , to which a winding 3 (not illustrated) can be attached so as to completely pass around the central region of the coil former 1 .
  • protruding positioning elements 11 c are arranged on these outer sides 11 b .
  • the winding 3 arranged on the outer sides 11 b can be held stably in position.
  • movable flaps 12 a and 12 b are arranged on the coil former 1 .
  • these two flaps 12 a and 12 b are arranged on opposite longitudinal sides of the essentially square coil former 1 .
  • these two flaps 12 a and 12 b are integrally extruded at the upper edge of a positioning element 11 c , the movable flaps 12 a and 12 b each being arranged on the positioning element 11 c via a hinge apparatus.
  • the hinge apparatuses are in the form of film hinges, only the film hinge 121 being visible in FIG. 3 . As can be seen in FIG.
  • the film hinge 121 is designed to have a thickness which, in comparison to the thickness of the movable flap 12 b and to the region directly adjacent to the positioning element 11 c , has a tapered design.
  • the film hinge 121 has a linear design. This means that the film hinge 121 is straight over the entire length of the movable flap 121 and is arranged essentially at the lower edge of the side region of the positioning element 11 c .
  • a film hinge is formed and arranged in the region of the movable flap 12 a.
  • the film hinge 121 may be arcuate and to have, for example, a concave design as regards a plan view illustration of the coil former 1 illustrated in FIG. 3 .
  • the point of maximum force effect for further actuation of the movable flap 12 b can preferably be at a pivoting angle covered of approximately 90° starting from the initial position of the movable flap 12 b shown in FIG.
  • the movable flap 12 b may have, for example, a tilt of approximately 30° with respect to the vertical.
  • the shaped-out section of the film hinge may be in the region of the flap 12 a.
  • each of the two flaps 12 a and 12 b may be of two-part design and for the two parts to be arranged on an upper and a lower positioning element 11 c , respectively, on one side of the coil former such that they are moved towards one another in order to be closed and are preferably arranged such that they overlap when a closed state has been reached.
  • FIG. 4 shows a further perspective illustration of a coil former 1 according to the invention in a second state.
  • the two flaps 12 a and 12 b are pivoted downwards and show a closed state.
  • the winding which is arranged on the outer side 11 b of the central region and is not illustrated in FIG. 4 , is as a result covered by the plate-shaped, movable flaps 12 a and 12 b at these side regions.
  • the movable flaps 12 a and 12 b as a result form space-saving insulation for the winding with respect to a coil core (not illustrated).
  • the coil core 2 (see FIGS. 1 and 2 ) can subsequently be attached to the coil former 1 so as to correspond to the arrangement shown in FIG. 1 and FIG. 2 .
  • a central subregion of the coil core 2 engages in the interior 11 a of the central region of the coil former 1 .
  • the outer limbs 21 of the coil core 2 engage around the coil former 1 at the side regions at which the movable flaps 12 a and 12 b are also arranged.
  • the coil core 2 and the coil former 1 are in this case shaped such that the outer limbs 21 , in the exemplary embodiment, bear against the movable flaps 12 a and 12 b and therefore engage around the coil former 1 such that the movable flaps 12 a and 12 b are held in the closed state by the outer limbs 21 .
  • the movable flaps 12 a and 12 b are then used as effective insulation between this winding 3 and the coil core 2 , in particular the outer limbs 21 .
  • the area in which the winding 3 is arranged can therefore be completely utilized and have an optimum design in terms of losses.
  • the existing problem in the prior art which envisages either an air gap between the winding 3 and the coil core 2 or the attachment of a so-called horseshoe tape, can be prevented by the invention.
  • the invention can be used for all coil core shapes and all coil core materials.
  • FIG. 5 shows a detail drawing of a preferred embodiment.
  • the movable flaps 12 a and 12 b are held in the closed state by the coil core.
  • this may lead to the winding space not being entirely covered by the movable flaps 12 a and 12 b and to a gap resulting.
  • a hook H snaps over the movable flaps 12 a and 12 b when the coil core is pushed on and presses the movable flaps 12 a and 12 b against the winding space. This ensures that the winding space is entirely covered laterally by the movable flaps 12 a and 12 b and no gap results.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulating Of Coils (AREA)
US11/989,294 2005-07-29 2006-07-27 Coil body for an electric oil and method for producing an electronic element provided with said coil body Abandoned US20090231080A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202005011962U DE202005011962U1 (de) 2005-07-29 2005-07-29 Spulenkörper für eine elektrische Spule
DE202005011962.8 2005-07-29
PCT/EP2006/007468 WO2007014704A1 (de) 2005-07-29 2006-07-27 Spulenkörper für eine elektrische spule und verfahren zum herstellen eines elektronischen bauelements mit einem derartigen spulenkörper

Publications (1)

Publication Number Publication Date
US20090231080A1 true US20090231080A1 (en) 2009-09-17

Family

ID=35336483

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/989,294 Abandoned US20090231080A1 (en) 2005-07-29 2006-07-27 Coil body for an electric oil and method for producing an electronic element provided with said coil body

Country Status (8)

Country Link
US (1) US20090231080A1 (de)
EP (1) EP1911048A1 (de)
KR (1) KR20080031285A (de)
CN (1) CN101233587A (de)
CA (1) CA2617572A1 (de)
DE (1) DE202005011962U1 (de)
TW (1) TW200713354A (de)
WO (1) WO2007014704A1 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303823A (en) * 1992-07-17 1994-04-19 Minnesota Mining And Manufacturing Company Reusable, two-piece storage container

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE552897C (de) * 1932-06-18 Cellowaro Spezialfabrik Fuer A Zusammenklappbare Schutzbrille
DE2119042A1 (de) * 1971-04-20 1972-10-26 Graupner, Doerks & Co, Spezialfabrik für Transformatoren, Drahtwiderstände u. Spulen, 8771 Wiesthal Spulenkörper für Transformatoren, Übertrager und dergleichen mit mehreren angeformten Schutzklappen an den Flanschen
DE2250394A1 (de) * 1971-12-29 1973-07-05 Dc Pack Co Ltd Elektromagnetische induktionsvorrichtung
DE2235855A1 (de) * 1972-07-21 1974-01-31 Gerhard Quintus Spulenkoerper
AT365850B (de) * 1979-05-07 1982-02-25 Zumtobel Ag Spulenkoerper fuer elektrische drahtwicklungen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303823A (en) * 1992-07-17 1994-04-19 Minnesota Mining And Manufacturing Company Reusable, two-piece storage container

Also Published As

Publication number Publication date
EP1911048A1 (de) 2008-04-16
DE202005011962U1 (de) 2005-11-03
CN101233587A (zh) 2008-07-30
TW200713354A (en) 2007-04-01
CA2617572A1 (en) 2007-02-08
WO2007014704A1 (de) 2007-02-08
KR20080031285A (ko) 2008-04-08

Similar Documents

Publication Publication Date Title
US10562470B2 (en) Wire harness having movable and fixing supports for path control
JP4348993B2 (ja) 電気部品及びその製造方法
WO2007091356A1 (ja) アンテナ用コイル
FI122012B (fi) Virityselin ja viritettävä resonaattori
US8031040B1 (en) Magnetic component having a bobbin structure with integrated winding
JP2011088406A (ja) バスバーモジュールの製造方法及びバスバーモジュール
WO2015072423A1 (ja) バッテリカバー
EP1264955B1 (de) Kettenantrieb
US20090231080A1 (en) Coil body for an electric oil and method for producing an electronic element provided with said coil body
US20150211747A1 (en) Exhaust closure system for a cooking oven
EP0485341A1 (de) Kleintransformator und Herstellungsverfahren für diesen
KR20200129246A (ko) 길이 가변식 와이어링 프로텍터
DE112006003946B4 (de) Induktives Bauteil mit einem Spulenkörper mit integrierter Wicklung
DE202005022018U1 (de) Lampenanordnung mit Lampe und Reflektor
US20190334229A1 (en) Molding Designs For Helical Antennas
EP1096642A2 (de) Isolierkörper mit Filmscharnier zur Polisolation
WO1998053470A1 (en) Electrical terminal with finger-proof protection
JP7338124B2 (ja) 車両用サンシェード装置及び車両のドア構造
US8993906B2 (en) Vehicle switch
WO2014056547A1 (de) Verfahren zur herstellung einer isolation eines leiters
JP6354251B2 (ja) ドア開度調整装置
US10439286B2 (en) Antenna device
CN205680519U (zh) 电感元件
JP7120602B2 (ja) アンテナコイルおよびアンテナ装置
US20220242204A1 (en) Assembly carrier of a vehicle door, and method for producing an assembly carrier

Legal Events

Date Code Title Description
AS Assignment

Owner name: PATENT-TREUHANF-GESELLSCHAFT FUR ELEKTRISCH GLUHLA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EBERT, WOFGANG;KLIER,JURGEN;ORBEN, BERNHARD;REEL/FRAME:020446/0631;SIGNING DATES FROM 20080114 TO 20080116

AS Assignment

Owner name: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, GERM

Free format text: MERGER;ASSIGNOR:PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN MBH;REEL/FRAME:022174/0524

Effective date: 20080331

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION